他にはない合金

 

 

超弾性ニチノール

体温や常温などの低温環境における超弾性ニチノールの相変態の特性は医療機器やその他低温域の用途で多く使われています。

超弾性ニチノールの使用事例:

NiTi #1 is commonly used for applications requiring superelasticity at room and body temperature. Typical applications include guidewires, stents, stylets, forming mandrels, stone retrieval baskets, and orthodontic files.

NiTi #2 is a ternary grade of Nitinol containing additions of chromium (0.2-0.3% Cr by weight) and is often used in applications requiring increased loading and unloading plateau stresses and decreased transformation temperatures.

NiTi #3 is a ternary grade of Nitinol containing additions of cobalt (1.0-2.0% Co by weight) and is often used to maximize loading and unloading plateau stresses over other Nitinol grades. Decreased transformation temperatures also allow this grade of Nitinol to remain superelastic in colder temperature applications.

NiTi #4 has the warmest transformation temperatures of our superelastic grades, resulting in decreased modulus and plateau stresses and improved fatigue performance at room and body temperatures when compared to other superelastic Nitinol grades with equivalent previous cold work and heat treatments.

NiTi #9 is the coldest grade of binary Nitinol that we offer and is used for applications requiring superelasticity at colder temperatures.

After an appropriate heat treatment, superelastic Nitinol will accommodate strain of up to 8% in tension without significant permanent deformation, when tested at room temperature which is above the transformation temperature of the material.

All Binary Nitinol grades meet the chemistry requirements set forth by ASTM F2063 for use in surgical implants.

さらに特殊な性能が必要ですか?

Our unique product offerings could be just what you're looking for if the typical grades of Nitinol aren't quite right. From ultra-smooth oxide free Silk® Nitinol, to ultra-stiff USN® wire, you'll find all kinds of material solutions right here.

機械的特性

ニチノールには無限の可能性があると言えます。 以下の情報を参照ください。超弾性ニチノールと弊社が提供する製品の利用状況が良く分かります。

 
Superelastic Thermal and Mechanical Properties Table
  冷間加工 超弾性
製品 Ingot A
(°C)
UTS
(MPa)
[ksi]
伸び
(%)
UTS
(MPa) [ksi]
伸び(%) Upper Plateau
(MPa) [ksi]
Lower Plateau
(MPa) [ksi]
Active A
(°C)

Permanent set < 0.5% after strained to 8%. Results are typical for round wire diameters from 0.03 mm to 1.02 mm [0.001 in to 0.04 in]. All mechanical testing conducted at 22°C ± 2°C [71.6°F ± 3.6°F]. Our video library can help you learn about active Af testing using the Fort Wayne Metals Manual Method and test methods conforming to ASTM F2082, such as LVDT or the vision system. You can compare the two test methods by reading the whitepaper. Please note that a correlation study may be required to switch test methods on an existing part.

NiTi #1 -35~-10 1379 [200] > 4% 1241 [180] > 10% > 483
(> 70)
> 138
(> 20)
10~18
NiTi #2 -65~5 1655 [240] > 4% 1378 [200] > 10% > 552
(> 80)
> 207
[> 30]
0~18
NiTi #3 -95~-65 1379 [200] > 4% 1241 [180] > 10% > 689
(> 100)
> 414
(> 60)
-20~-10
NiTi #4 -10~10 1379 [200] > 4% 1241 [180] > 10% > 448
[> 65]
> 48
(> 7)
14~22
NiTi #9 ≤ -35 1379 [200] > 4% 1103 [160] > 10% > 517
(> 75)
> 172
(> 25)
-10~+5

 

弊社が対象とする市場

ニチノールは医療分野に限らず、多くの分野で利用されています。 弊社は医療機器関連でニチノールについて豊富な知識を有しており、またアクチュエーター等のさまざまな工業用途についても独自の知見を備えています。

ご質問がおありですか?

弊社のニチノール専門家は、喜んでお客様が用途に合った材料を見つけるお手伝いをいたします。 ご連絡下さい。ニチノールがどのように役立つのかご案内致します。